2016-10-14
Glass furnace in a variety of high-tech composite seal make glass furnace refractory "absolute seal". This not only ensure the safe use of furnace, also avoid the kiln, greatly extend the service life of the furnace. Glass furnace composite seal refractory series, with all kinds of high technology has been widely applied in glass industry furnace, self-closed and seal of a bottom, the wall must be adopt multi-layer sealing structure, make the glass furnace to realize "absolute seal". This not only ensure the safe use of furnace, also avoid the kiln, greatly extend the service life of the furnace, and because the seal and strengthen the implementation of the heat preservation, greatly improve the melt process. For kiln seal, therefore, is in significant improvements in the structure of glass furnace.
The self-closed partly siliceous refractory series seal
Glass furnace composite seal series refractory with high technology mainly includes: the self-closed partly siliceous refractory sealing series, bottom, wall zirconium just the quality of the jade seal series refractory materials. 2 kinds of materials are typical of multiphase composite seal refractory high technology, with other is difficult to meet the dynamic characteristics of composite materials.
The siliceous refractory sealing material is widely used in glass kiln is an important new refractory materials. Furnace big self-closed seal is by laying the self-closed use seal mud, crack of drying kiln process with dry sealing powder, laying on top of arch walling width silica brick layer sealing material multi-layer sealing.
The siliceous refractory sealing series of multiphase composite materials is the modern high technology, is composed of aggregate, ceramic bond, dispersing medium phase, modification and phase, add and water and so on six phase chemical composition. Using SiO2 ceramic bond quality of various special requirements, the technical performance indicators of the siliceous refractory sealing are improved significantly. Masonry mud sealing and sealing layer material are as high as 1750 ℃, refractoriness under load softening point 1710 ℃, both the high temperature performance index is higher than the high quality silicon fire clay brick and big self-closed respectively increased by 40 ℃ to 50 ℃, this is a significant progress in the study of the siliceous refractory materials at home and abroad.
Mild in the normal temperature, low temperature, high temperature, has special high bonding strength, is the high technology, compound sealing material in the furnace the self-closed successful use of another important reasons. Room temperature compressive strength can guarantee laying the self-closed brick after the demolition of the self-closed tire does not occur the self-closed brick draw and subsidence phenomenon; After 110 ℃ drying at low temperature, cold bending strength to more than 5 times higher than that of other high quality mud, up to 4 mpa; Medium temperature (800 ℃ ~ 1000 ℃) strength is improve and enhance the compound sealing material ceramic binder integrated system is one of the main features; High temperature due to produce good sintering effect, make the big self-closed produces the overall structural strength.
Bottom, zirconium welding pool wall electricity just the quality of the jade seal series refractory materials
With the improvement of glass production melting temperature and yield greatly, the strengthening of the heat preservation furnace life extension, and the using of electric melting and bubbling technology, implement strict and effective sealing for furnace, is an important development trend of modern glass furnace, especially in direct contact with the glass bottom, wall and other parts, is especially important.
Bottom, the wall zirconium just the quality of the jade seal series refractory, zirconium fused corundum is used as raw material, a new generation of ceramic bond, join the dispersed phase, modified to join phase, chemical additives type equal to the preparation of a pouring modern sealing material. Is mainly used in glass melting YaoChi bottom, wall and small furnace using zirconium fused corundum brick matching with the high technology of composite seal series of refractory material and its excellent glass erosion resistance, it is the key to ensure the safety of furnace operation, the conventional material can be compared, erosion resistance index was 0.6 times of zirconium fused corundum brick, AZS quality seal ramming material than phosphate combined with more than double. It have good erosion resistance, on the one hand, is due to using fused zircon corundum as main raw materials, the raw material almost no air hole exists, and it is by the strong erosion resistance of corundum, mullite and baddeleyite mineral phase composition; , on the other hand, this new type sealing castable due to high dispersing ceramic bond and colloidal particles, the results of sealing material after forming gap filling formed a thin capillary resistance to erosion of compact structure, greatly improve the damage resistance of the material, the molten YaoChi pool wall and bottom sealing in the actual application, has obtained the prominent use of successful experience and sealing effect.
Glass furnace composite seal series refractory with high technology, both from a composite material, the perspective of the component phase composition, function and role, and the mutual dynamic reaction were studied, thus determine the new seal of refractory production method, technical route, process theory, developed the modern high technology dynamic compound sealing material series, added new varieties for refractory industry.
